Water pick

Abstract

The utility model provides an oral irrigator which comprises an acting assembly and a main body assembly which are combined with each other, a liquid storage cavity, a pipeline assembly and a pump body assembly are arranged in the main body assembly, the liquid storage cavity is used for storing cleaning liquid, and the pump body assembly is used for forcing the cleaning liquid in the liquid storage cavity to flow to the acting assembly after passing through the pipeline assembly and to be sprayed out from the acting assembly. The pump body assembly comprises a pump shell, a piston, a connecting rod, a transmission assembly and a motor, the motor is connected with a power source and used for driving the transmission assembly to move, the connecting rod is used for connecting the piston and the transmission assembly, and the piston is arranged in the pump shell and is driven by the connecting rod to reciprocate in the pump shell; the pump body assembly further comprises a liquid discharging groove, and the liquid discharging groove is communicated with the pipeline assembly and used for receiving the cleaning liquid flowing out of the piston and discharging the cleaning liquid through the pipeline assembly, so that the cleaning liquid is prevented from flowing out to corrode other devices.

Description

Technical Field

[0001] The utility model relates to the field of oral care appliances, in particular to a dental irrigator. Background Art

[0002] As an oral care appliance, the working principle of a dental irrigator is to pressurize a cleaning liquid for tooth cleaning through a pump body, so as to eject a high-pressure pulsed fluid to clean teeth and the gaps around the teeth. A silica gel plug is usually installed in the pump body of the existing dental irrigator. Driven by a motor, the silica gel plug makes a reciprocating motion in the pump body.

[0003] However, the friction caused by the long-term reciprocating motion easily damages the silica gel plug, resulting in the failure of the sealing function and the appearance of gaps between the silica gel plug and the inner wall of the pump body. At this time, the liquid in the pump body will flow along the gap, and then devices such as the motor, battery or circuit board come into contact with the liquid. Over time, these electronic devices will be damaged due to corrosion. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a dental irrigator, and the dental irrigator adopts the following technical solutions:

[0005] The utility model provides a dental irrigator, which includes a working component and a main body component combined with each other. A liquid storage cavity, a pipeline component and a pump body component are arranged in the main body component. The liquid storage cavity is used for storing a cleaning liquid. The pump body component is used to force the cleaning liquid in the liquid storage cavity to flow through the pipeline component and then to the working component, and spray out from the working component. The pump body component includes a pump housing, a piston, a connecting rod, a transmission component and a motor. The motor is connected to a power supply and is used to drive the transmission component to move. The connecting rod is used to connect the piston and the transmission component. The piston is arranged in the pump housing and makes a reciprocating motion in the pump housing driven by the connecting rod. The pump body component further includes a liquid discharge groove, which is communicated with the pipeline component and is used to receive the cleaning liquid flowing out from the piston and discharge the cleaning liquid through the pipeline component.

[0006] A liquid storage bin is arranged in the pump housing. The piston is arranged in the liquid storage bin. The liquid discharge groove is arranged below the piston. The connecting rod passes through the liquid discharge groove and is connected to the piston.

[0007] The liquid discharge groove includes an installation cavity and a liquid receiving groove. The installation cavity is formed by surrounding the liquid receiving groove. The connecting rod passes through the installation cavity and is connected to the piston. Further, along the up-and-down direction, the liquid storage bin is opposite to the liquid receiving groove. The lower end of the liquid storage bin abuts against the bottom wall of the liquid receiving groove. Description of the Drawings

[0008] Figure 1 is the overall view of the dental irrigator involved in the utility model.

[0009] Figure 2The perspective view of the pump body assembly of the oral irrigator related to the present utility model when supported by the inner shell.

[0010] Figure 3 The perspective view of the pump body assembly of the oral irrigator related to the present utility model when connected to the pipeline assembly.

[0011] Figure 4 The perspective view of the liquid storage chamber, piston and liquid discharge groove of the oral irrigator related to the present utility model when disassembled. Detailed implementation manners

[0012] The oral irrigator related to the present utility model will be described in detail below with reference to the accompanying drawings.

[0013] Figure 1 The overall view of the oral irrigator related to the present utility model; Figure 2 The perspective view of the pump body assembly of the oral irrigator related to the present utility model when supported by the inner shell; Figure 3 The perspective view of the pump body assembly of the oral irrigator related to the present utility model when connected to the pipeline assembly; Figure 4 The perspective view of the liquid storage chamber, piston and liquid discharge groove of the oral irrigator related to the present utility model when disassembled.

[0014] The present utility model provides an oral irrigator 100, which includes an acting component 10 and a main body component 20 combined with each other. A liquid storage cavity (not shown in the figure), a pipeline component 40 and a pump body component 30 are provided in the main body component 20. The liquid storage cavity is used for storing cleaning liquid, and the pump body component 30 is used to force the cleaning liquid in the liquid storage cavity to flow through the pipeline component 40 and then to the acting component 10 and spray out from the acting component 10. Along the longitudinal direction, the side where the acting component 10 is located is the upper side, and the side opposite to the side where the acting component 10 is located is the lower side.

[0015] As Figure 2 shown, the main body component 20 includes an inner shell 21, and the pump body component 30 is arranged in the inner shell 21 and supported by the inner shell 21. The pump body component 30 includes a pump shell 31, a piston 32, a connecting rod 33, a transmission component 34 and a motor 35; the motor 35 is connected to a power source and is used to drive the transmission component 34 to move. The connecting rod 33 is used to connect the piston 32 and the transmission component 34. The piston 32 is arranged in the pump shell 31, and a pressure cavity is formed in the pump shell 31. Driven by the transmission component 34, the piston 32 reciprocates in the pump shell 31, thereby changing the pressure in the pressure cavity and generating high-pressure water flow. The piston 32 can be set as a silica gel plug or other common materials in the prior art. The pipeline component 40 includes a liquid inlet pipe 41, a liquid discharge pipe 42 and a liquid outlet pipe 43, and the liquid inlet pipe 41, the liquid discharge pipe 42 and the liquid outlet pipe 43 are respectively communicated with the pump body component 30.

[0016] Further, a liquid storage chamber 311 is provided in the pump housing 31. The piston 32 is disposed in the liquid storage chamber 311 and is in close contact with the inner wall of the liquid storage chamber 311 to play a sealing role. The pressure chamber is formed in the liquid storage chamber 311. Driven by the connecting rod 33, the piston 32 reciprocates in the liquid storage chamber 311, thereby changing the pressure in the pressure chamber and generating high-pressure water flow. If the oral irrigator 100 is used for a long time, due to the long-term friction between the piston 32 and the liquid storage chamber 311, the piston 32 is prone to wear, and thus the sealing effect of the piston 32 is weakened. At this time, the liquid in the liquid storage chamber 311 will flow out along the gap between the piston 32 and the inner wall of the liquid storage chamber 311 and flow to devices such as the motor, battery, or circuit board, ultimately resulting in the corrosion and damage of these electronic devices and shortening the service life of the oral irrigator 100.

[0017] To solve the above problems, the pump body assembly 30 of the present utility model further includes a liquid discharge groove 36. The liquid discharge groove 36 is disposed below the piston 32, and the connecting rod 33 passes through the liquid discharge groove 36 and is connected to the piston 32. The liquid discharge groove 36 is used to receive the cleaning liquid flowing out from the gap between the piston 32 and the inner wall of the liquid storage chamber 311 to prevent the liquid from flowing to other components. The liquid discharge groove 36 includes an installation cavity 361 and a liquid receiving groove 362. The installation cavity 361 is formed by surrounding the liquid receiving groove 362. The connecting rod 33 passes through the installation cavity 361 and is connected to the piston 32. In the vertical direction, the liquid storage chamber 311 is opposite to the liquid receiving groove 362. In this embodiment, the lower end of the liquid storage chamber 311 abuts against the bottom wall of the liquid receiving groove 362. The liquid discharge pipe 42 is communicated with the liquid receiving groove 362, and thus the cleaning liquid received in the liquid receiving groove 362 can be discharged from the liquid discharge pipe 42.

[0018] The present utility model provides an oral irrigator. The pump body assembly of the oral irrigator includes a liquid discharge groove. The liquid discharge groove is communicated with a pipeline assembly. The liquid discharge groove is used to receive the cleaning liquid flowing out from the piston and discharge the cleaning liquid through the pipeline assembly, so as to prevent other devices from coming into contact with the cleaning liquid and being corroded and damaged, thereby prolonging the service life of the oral irrigator.

Claims

1. An oral irrigator, comprising an acting component and a main body component which are combined with each other. A liquid storage cavity, a pipeline component and a pump body component are arranged in the main body component. The liquid storage cavity is used for storing a cleaning liquid. The pump body component is used for forcing the cleaning liquid in the liquid storage cavity to flow through the pipeline component and then flow to the acting component and be ejected from the acting component. It is characterized in that, The pump body assembly includes a pump housing, a piston, a connecting rod, a transmission assembly and a motor. The motor is connected to a power source and is used to drive the transmission assembly to move. The connecting rod is used to connect the piston and the transmission assembly. The piston is arranged in the pump housing and reciprocates in the pump housing driven by the connecting rod. The pump body assembly further includes a liquid discharge groove, which is communicated with the pipeline assembly and is used to receive the cleaning liquid flowing out from the piston and discharge the cleaning liquid through the pipeline assembly.

2. The dental irrigator according to claim 1, wherein A liquid storage bin is arranged in the pump housing. The piston is arranged in the liquid storage bin. The liquid discharge groove is arranged below the piston. The connecting rod passes through the liquid discharge groove and is connected to the piston.

3. The oral irrigator according to claim 2, wherein, The liquid discharge groove includes an installation cavity and a liquid receiving groove. The installation cavity is formed by surrounding the liquid receiving groove. The connecting rod passes through the installation cavity and is connected to the piston.

4. The oral irrigator according to claim 3, characterized in that, In the up-and-down direction, the liquid storage bin is opposite to the liquid receiving groove.

5. The oral irrigator according to claim 4, wherein, The lower end of the liquid storage bin abuts against the bottom wall of the liquid receiving groove.

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